21000-34-05-30-066-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-34-05-30-066-03-02

When machinery vibration threatens uptime, the 21000-34-05-30-066-03-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is designed for hazardous area applications, featuring a 3300 XL 8 mm probe with connector protector. It includes a 0.5 m (20 in) probe cable and a 3 in standoff adapter, ensuring precise measurement in tight spaces.

Part of the 21000 series, this unit is engineered for external mounting per API 670 standards. The aluminum body with 304 stainless steel sleeve offers corrosion resistance and durability. With CSA Type 4 enclosure rating, it is suitable for explosion-proof environments.

Key Features and Technical Specs of the 21000-34-05-30-066-03-02

• Probe type: 3300 XL 8 mm with connector protector
• Probe cable length: 0.5 m (20 in)
• Standoff adapter: 3 in
• Probe penetration: 6.6 in
• Fitting option: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and cable seal grip
• Mounting thread: 3/4-14 NPT
• Material: Aluminum body with 304 stainless steel sleeve
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Temperature range: -51°C to +177°C (-60°F to +351°F) for 3300 XL 8 mm probe

A standout spec is the wide temperature range of -51°C to +177°C, enabling reliable operation in extreme environments. This ensures consistent performance in both arctic and high-heat industrial settings.

Applications and Use Cases

Industries such as oil and gas, petrochemical, and power generation rely on the 21000-34-05-30-066-03-02 for critical machinery protection. It is ideal for monitoring shaft vibration and position in turbines, compressors, and pumps. For example, in a refinery, this housing assembly can withstand harsh conditions while providing accurate proximity measurements to prevent catastrophic failures.

Installation Guide

Mounting the 21000-34-05-30-066-03-02 requires a 3/4-14 NPT threaded port. The included fitting kit contains a plug, reducer, and cable seal grip for various cable sizes (1/8 to 3/8 inches). Ensure the probe sleeve is properly inserted to achieve the 6.6 in penetration depth. The standoff adapter (3 in) helps position the probe correctly relative to the target.

For hazardous area installations, follow all local electrical codes and the manufacturer's manual. The CSA Type 4 enclosure provides dust and water ingress protection.

Maintenance and Reliability

Regular inspection of the 21000-34-05-30-066-03-02 is recommended to verify seal integrity and cable condition. The aluminum and stainless steel construction resists corrosion, extending service life. Periodically check the O-rings and thread seal for wear. This proactive approach minimizes unplanned downtime and reduces long-term costs.

Compatibility and Integration

The 21000-34-05-30-066-03-02 is compatible with Bently Nevada 3300 XL 8 mm proximity probes and associated monitoring systems. It meets API 670 standards for external mounting, ensuring seamless integration into existing vibration monitoring networks. The CSA approval allows use in hazardous locations, simplifying compliance.

Frequently Asked Questions

Q: What is the temperature range for the 21000-34-05-30-066-03-02?

A: The 3300 XL 8 mm probe operates from -51°C to +177°C (-60°F to +351°F).

Q: What mounting thread does this assembly use?

A: It uses a 3/4-14 NPT thread.

Q: What is the probe cable length?

A: The probe cable is 0.5 m (20 in).

Q: Is the 21000-34-05-30-066-03-02 suitable for hazardous areas?

A: Yes, it has CSA Type 4 enclosure rating and is explosion-proof for hazardous locations.

Q: What materials are used in the housing?

A: The body is aluminum with a 304 stainless steel sleeve.

Product Support and Availability

The 21000-34-05-30-066-03-02 is available in new and original factory packaging from Petro Auto Tech. It comes with a 12-month warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.